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Table 4 Echocardiographic data presented as mean ± standard deviation

From: Respiratory and haemodynamic changes during decremental open lung positive end-expiratory pressure titration in patients with acute respiratory distress syndrome

  T0 T20/30 TOLP
Maximum diameter vena cava inferior (cm) 2.2 ± 0.44 1.8 ± 0.4 2.14 ± 0.35
Minimum diameter vena cava inferior (cm) 1.52 ± 0.37 1.3 ± 0.47 1.44 ± 0.36
Maximum diameter vena cava superior (cm) 1.92 ± 0.43 1.85 ± 0.65 1.8 ± 0.55
Minimum diameter vena cava superior (cm) 1.3 ± 0.39 1.18 ± 0.44 1.1 ± 0.35
Diameter left ventricle anterior-posterior end-systolic (cm) 3.2 ± 1.5 2.9 ± 1.3 3.1 ± 1.4
Diameter left ventricle anterior-posterior end-diastolic (cm) 4.5 ± 1.4 4.3 ± 1.2 4.8 ± 1.5
Diameter left ventricle septal-lateral end-systolic (cm) 2.8 ± 0.9 2.5 ± 0.9 2.7 ± 0.8
Diameter left ventricle septal-lateral end-diastolic (cm) 4.2 ± 0.9 3.5 ± 1a 4.2 ± 1.1b
End-systolic area of left ventricle (cm2) 8.3 ± 5 6.8 ± 4.1 7.2 ± 3.7
End-diastolic area of left ventricle (cm2) 17.3 ± 7 13.5 ± 5a 17.2 ± 7b
Left ventricular ejection fraction (%) 66 ± 14 60 ± 11a 69 ± 10b
End-systolic area of right ventricle (cm2) 8.1 ± 5 7.7 ± 3 7.8 ± 4
End-diastolic area of right ventricle (cm2) 13.6 ± 3 16.1 ± 4a 13.4 ± 4b
Right ventricular Tei index (%) 39 ± 11 42 ± 10a 36 ± 11a/b
  1. aP < 0.05 compared with T0; bP < 0.05 compared with T20/30.
  2. Right ventricular Tei index was calculated as the sum of the isovolumic contraction time and the isovolumic relaxation time, divided by ejection time. T0 = time at baseline; T20/30 = time when positive end-expiratory pressure at 20 cmH2O and driving pressure at 30 cmH2O; TOLP = time at open lung-positive end-expiratory pressure.